To perform the test, I took the spacers I had made for my new 6-jaw chuck backplate and compared the results. H&M Blacknitride+ | The New Standard in Steel Hardening Now Available Nationwide! The material was 1018 and 1214. By No longer will your surgeon be distracted by bright, shiny objects. Thin film typically 3 m (0.000118")thick. Most chrome moly barrels that were parkerized in days past are now melonited, which is a fancy name for black nitride. That makes for extremely uniform surface coatings on parts with tight tolerances, like a triggers sear-engagement surfaces. It is a tough corrosion proof coating, with excellent friction properties. First class company and customer service. To expand its offering of Ejector Sleeves, Progressive has added treatments for greaseless applications. http://www.matter.org.uk/steelmatter/manufacturing/surface_hardness/7_2_4.html, If this is your first visit, be sure to Proven to reduce the incidence of repair for stuck ejector pins. Ok, that's fair. Son, you don't know what you don't know about the subject. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).If you need to return an item, pleaseContact Uswith your order number and details about the product you would like to return. More than that, Tungston, Aluminum are also used with mixing other metals. Simply add both products to your order! NiB-coated components are relatively easy to clean up but may become discolored when subjected to high heat. (just the slide). CNC machines only go through the motions. An added plus is, unlike chrome liningwhich is mostly limited to chrome-moly steel blendsnitriding is optimal for stainless-steel bores, too. I've had several of my guns Pvd coated by Richter precision. Check out whats available from firms like Birchwood to see the more professional solutions. This component features a black nitride coating. With Cold Bluing and Black Oxide, the chemicals are much milder and no heat is required. The nitrogen then diffuses onto the surface of the material creating a nitride layer. Sothat could be a factor in deciding whether to choose this finish. So I can say its a pretty good treatments. you use ammonia gas to nitride, not CN, typical application for say a die would be 500-575 degrees for 12-14 hrs, stay away from salt bath hardening if you can, if surface requires cyanide salt hardening go to a heat treatment co, sticking yourself with antidode hurts, but not as much as CN poisoning! Extremely strong adhesionmolecular bond to substrate metal. Spray-ons have the added benefit of being equally well-suited for aluminum, polymer and wooden rifle components, too. NiB coated bolt carrier groups are in the middle range on price, more costly than black nitride or phosphate but far less than Titanium Nitride. The process was greeted with enthusiasm in Germany and several steel grades were developed with nitriding in mind: the so-called nitriding steels. When materials contain non-smooth properties, wear can easily occur. These bolt carriers had a natural lubricity and proved to be durable, the only downside beingthat the hard chrome plating was prone to flaking. Examples of easily nitridable steels include the SAE 4100, 4300, 5100, 6100, 8600, 8700, 9300 and 9800 series, UK aircraft quality steel grades BS 4S 106, BS 3S 132, 905M39 (EN41B), stainless steels, some tool steels (H13 and P20 for example) and certain cast irons. When applying, the material is first coated with nickel boron, then it is treated in a salt nitride bath. So, you have ignored the question. All times are GMT-5. So yes, it's still a heat treatment. Who the hell who send their personal stuff to be nitrided even knows what AMS 2753 and 2759/6 are? Whether one ounce or 4,000 lbs., orders are filled with the precision and quality for which we're recognized. Because steels with higher alloy contents were not readily available for nitriding, Fry became responsible for developing a group of steels for Krupp known as the "Nitralloy . Attempts to chrome-line rifle bores date back to the first half of the 20th century. There are vendors who know very well what they're doing with firearms and componentsand donitriding for both OEMs and aftermarket. As for cosmetics, the wear properties of the surface may be a concernfor some people,even if the underlying metal isn't affected. The choice allows users to personalize the rail coating that best suits each individual . Improve the shooting experience You will feel and see the difference! Cold Black Oxide is not an oxide conversion coating. When properly applied, spray-on gun coating provides good corrosion resistance and allow you to truly customize your rifles appearance due to endless color and pattern variations. I'm glad someone in the industry is doing it. You will receive a link to create a new password via email. BlackNitride! January 31, 2019 in General Gunsmithing. $0.00. Gun Range Partners will be able to have new & used range guns coated with NiB-X at a discount off of Dealer Pricing. 330-284-5989 - call or text. The DS9 LOC is a 9mm Minor Pistol intended for use in USPSA Limited Optics Division. This slide is available for slide swap, which will require you to send in a stripped OEM Gen 3 Glock 19 slide. Side Locks When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Posted by William Roberts on Oct 28th 2022. AR15 BCG finishes (l-r) Toolcraft Titanium Nitride, BCM BCG with Robar NP3+, Toolcraft Nickel Boron, Toolcraft Black Nitride, Colt BCG refinished in Chrome with Nickel Boron Gas Key, Toolcraft Diamond Like Carbon (DLC) Finish, Toolcraft Chrome Phosphate (Parkerized) There are a wide variety of finishes available for AR-15 bolt carrier groups . A cadre of firearms performance experts formed WMD Guns to leverage these new firearm coating technologies and offer a full spectrum of premium products, coatings and services to the firearms industry. Setting A New Standard In Metal Processing 22,072 views Aug 31, 2018 253 Dislike Share GUNS and American Handgunner Magazines 63.5K subscribers H&M BlackNitride brings their aerospace. Black Nitride. The process has long since become standard in military and police battle rifles and carbines around the world. Uniform coating with no buildup on edges. Great experience and great company. I then oiled the parts with Break Free, which is also an excellent anti-corrosive. In recent years, the firearms field has seen the introduction of revolutionary new metal coatings and surface treatments that deliver unprecedented levels of corrosion protection, wear resistance and reliability. Women On Target Instructional Shooting Clinics, Volunteer At The Great American Outdoor Show, Marion P. Hammer Women Of Distinction Award, Women's Wildlife Management / Conservation Scholarship, National Youth Shooting Sports Cooperative Program, Review: FN America FN 15 DMR3 Rifle | An Official Journal Of The NRA, New For 2023: CVA Paramount Pro V2 | An Official Journal Of The NRA, New For 2023: Franchi Momentum All-Terrain Elite | An Official Journal Of The NRA, New for 2023: Bergara B-14 Squared Crest Rifle | An Official Journal Of The NRA, First Look: Primary Arms MD25 Red Dot Sight, I Carry: Smith & Wesson M&P9 M2.0 Metal Pistol in a KSG Armory Holster, One-Handed Practice | An Official Journal Of The NRA, 3 Self Defense Myths That Just Won't Go Away | NRA Family, Old Sheriff's Funniest Felon FAILs | NRA Family, Fun Friday: Old Sheriff's Favorite Dumb-Criminal Moments | NRA Family, Top 5 'I Carry' Videos of 2022 | An Official Journal Of The NRA, VIDEO: A1F Editor Features in I Carry for Shooting Illustrated | An Official Journal Of The NRA, I Carry: SCCY CPX-2 In A Blade-Tech Klipt Holster | An Official Journal Of The NRA, X-Vision Optics Launches Thermal Impact Scope | An Official Journal Of The NRA, First Shots: Colt CBX Precision Rifle | An Official Journal Of The NRA, New For 2022: Savage Arms 1911 | An Official Journal Of The NRA, NRA Women | Understanding Sectional Density (SD), 10 Most Versatile Long-Range Hunting Cartridges | An Official Journal Of The NRA, Fiocchi USA Appoints David Blenker As New CEO After Anthony Acitellis Retirement | An NRA Shooting Sports Journal, Behind the Bullet: .17 HMR | An Official Journal Of The NRA, Coyote Hunting Basics | An Official Journal Of The NRA, Physical Therapist's CCW Advice: Strong-Side Hip Carry | NRA Family, Preview: Full Forge Gear Hurricane | An Official Journal Of The NRA, New: Magpul Barricade Stop | An NRA Shooting Sports Journal, How to Properly Clean and Store Your Rifle After Hunting Season | An Official Journal Of The NRA, Winchesters New King Buck Classic Youth Sporting Clays Event Will Have $10,000 In Prizes | An NRA Shooting Sports Journal, USA Shooting Trap, Skeet Athletes Competing At 2023 ISSF World Cup Qatar | An NRA Shooting Sports Journal, Team Federals Derrick Mein, Vincent Hancock Land 2023 USA Shooting National Team Spots | An NRA Shooting Sports Journal, I Carry: Smith & Wesson M&P9 M2.0 Metal Pistol in a KSG Armory Holster | An Official Journal Of The NRA, Product Preview: Holosun SCS-MOS Green | An Official Journal Of The NRA, Gun Of The Week: Davidson's Exclusive Ruger-5.7 Red-Dot | An Official Journal Of The NRA, Find More Great NRA Publications Perfect For Every Interest, Discover Everything That The NRA Has To Offer. Fortis Takedown Pin AR-15 Black Nitride $ 21.95. Chrome-plated parts are slicker than bare steel, allowing for easier cleanup of pistons and bolt components. Theyre very easy to apply, requiring only a thorough degreasing before application. Unless your going to refinish it please dont degrease yourguns with a brake cleaner. You can also add Nitride treatment and Cerakote products at the same time! When shipping slides for milling, SHIP SLIDES ONLY. In the meantime, we offer a full array of NiB-X coated parts and firearms. We were cleaning up our guns and he suggested non- chlorinated brake cleaner. The onyx-black, Titanium Nitride coating reduces friction and preserves the steel against corrosion. They can do frames/receive pistols? by Bob Warfield | Blog, CNC Projects, Tools and Techniques | 0 comments. Material: Stainless Steel 17-4. $50.00. Cookies are . The problem with amateurs sending their stuff to be nitrided is that they know less than nothing about what they're asking a processor to do and have absolutely no idea of what they ended up with hardness wise. Your email address will not be published. This way you gain the full benefit of Nitride treatment with the unlimited color and pattern options that Cerakote coating affords! As important as the technologies themselves, were gun guys just like you! This technology is applicable to metals that can withstand the processing temperatures such as barrels, gas blocks, magazines, steel receivers, etc. I dont know anything about the process, but I do know that I sent my slide to Primary Machinefor some slide work and had the nitride finish done. In 2015, nitriding was used to generate a unique duplex microstructure in an iron-manganese alloy (martensite-austenite, austenite-ferrite), known to be associated with strongly enhanced mechanical properties.[7]. For small batches and the DIYer, the cold processes are much easier to deal with. Boron Nitride Dispersion Liquid - 8 fl oz For use with our One-Plate 1 Electroless Nickel System Use 6.4 fl oz of Boron Nitride dispersion per gallon of One-Plate 1 solution. Will be sending in my Glock 17 slide ASAP! Great service. 4110 I-70 North Outer Road The key to our engineered nickel boron plating processes is versatility. In a word: Rust. According to Evan in a recent thread, the Kasenite is a nitriding process, that uses a non-poisonous cyanide relative that is actually also available in bulk from restaurant suppliers. As well as some coats are also applied on the drill bits in order to improve the hardness, durability, and thermal resistance. The thickness and phase constitution of the resulting nitriding layers can be selected and the process optimized for the particular properties required. Nitromet Salt Bath Nitrocarburizing (Melonite, Tennifer, Black Nitride) This process is the new industry leader in bore coatings for firearm barrelsachieving a 30% greater lifespan in the bore than chrome! RESULTS: Cleaning was reduced, replacement intervals extended five times thanks to greater longevity gained from using black nitride products. The exact materials yo can blacken will be based on the recommendations of the makers of the particular chemicals or kit you use. Price was very reasonable. Behind the Black: Gas Nitriding. Returns PolicyYou may return most new, unopened items within 30 days of delivery for a full refund. A fine-turned or ground surface finish is best. This isn't something I'm going to debate with amateurs. We are standing by to take your call, and we will be more than happy to answer all of your questions about Melonite , Tenifer , and the QPQ case hardening process. Internal components in those days were usually stainless, Parkerized, blued or sometimes left in the white.. Hot Black Oxide involves hot baths of sodium hydroxide (the nasty stuff in drain cleaner), nitrates, and nitrites. I need cost effective bolt carriers thatare strong, protected and dont wear fast. Fill out & sign Range Partner Program Sheet. I simply cleaned them in some mineral spirits and then applied the compounds with a folded paper towel. Titanium nitride coating applications are capable of dealing with wear caused by problems involving abrasions and adhesives. However, if the nature of your rifle work requires something more practical, aim for components coated with a modern, durable and cost-effective surface treatment. The advantages of gas nitriding over other variants are: In salt bath nitriding the nitrogen donating medium is a nitrogen-containing salt such as cyanide salt. Jun 9, 2013. The Optic fits like a glove. Back when I was knocking around the woods of my youth, I carried wood-stocked rifles with steel that was either blued or color-case hardenedand usually with a bit of surface rust around the margins. As a Corporate Champion, Dalstrong supports Wounded Warrior Project (WWP) in their effort to deliver life- changing programs to over 100,000 wounded warriors, their families, and caregivers. currahee1911 Black Nitride products from Progressive are proven to perform in medical cleanroom molding environments, cosmetic/appearance product production, harsh conditions such as die casting, and beyond. For the nitriding process H2 gas is also added to keep the surface clear of oxides. Thisarticle, "Any Color You Like," appeared originally as aRifles Column in the July 2017 issue of Shooting Illustrated. Kalamazoo MI, 49009When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. High-tech gun coatings such as Robars NP3 and FailZeros Exo Technology boast additional advantages over the coatings described here. Nitrogen diffusion case-hardening process, Ullmann's Encyclopedia of Industrial Chemistry, Ion Nitriding and Nitrocarburizing of Sintered PM Parts, "Generating duplex microstructures bynitriding; nitriding of iron based FeMn alloy", "MIL-S-6090A, Military Specification: Process for Steels Used In Aircraft Carburizing and Nitriding", https://en.wikipedia.org/w/index.php?title=Nitriding&oldid=1134390168, Short description is different from Wikidata, Creative Commons Attribution-ShareAlike License 3.0. I use brake cleaner too. That's simply not the case in this application (assuming it's done correctly). 463k members in the golf community. They are also used on titanium, aluminium and molybdenum. Limited wear and high temperature applications. This coating is notable because it has all the slickness and ease of cleaning of a nickel boron carrier but the hardness properties of the black nitride making it less prone to flaking. Usually steels are beneficially treated with plasma nitriding. Quality and finish are top notch. TiN is a thinly-applied surface coating has a shiny gold-like appearance and is often used for show builds due to aesthetics. Yep - i read that just a little bit ago looks like, if i want to nitride something, i need to get a hold of some chrome-moly. NiB-X maintains its properties in high temperature applications and impervious to most chemicals (Nitric Acid notwithstanding). Nitriding vastly increases the hardness of the metal that is treated without changing the material dimensionally like the build up of a hard coat. Powered by Invision Community. When properly lubricated, overall wear properties are superior to hard chromium. Above: AR15 BCG finishes (l-r) Toolcraft Titanium Nitride, BCM BCG with Robar NP3+, Toolcraft Nickel Boron, Toolcraft Black Nitride, Colt BCG refinished in Chrome with Nickel Boron Gas Key, Toolcraft Diamond Like Carbon (DLC) Finish, Toolcraft Chrome Phosphate. Nitriding of stainless is also redundant, and . The physical vapour deposition techniques are widely used to deposit a wide range of materials on a number of base . The aim of this article was to deliver a review of the tribological properties of nitride-based coatings attained using various techniques including physical vapour deposition, chemical vapour deposition and spraying techniques. Maybe the Kleenbore product is not getting it done. The standard-issue guns I later carried in the Army were all Parkerized. No one would ever question that austenitizing and quenching high carbon alloy steels is a heat treatment, even though all it does is produce a hard outer case and doesn't appreciable alter the core properties; same as nitriding. Definitely would recommend this service. Still looks good. A critical marksmanship skill that is easy to overlook. High hardness of 66-70 HRC that is suited for harsh conditions. The three main methods used are: gas nitriding, salt bath nitriding, and plasma nitriding. Coating can be duplexed with sublayers or topcoats to enhance specific properties customers may desire. And you can rest assured that behind-the-scenes work is being done that may well represent a quantum leap in metal surface treatments. MPA DS9 Limited Optic Comp (LOC) $ 3,899.00. Upload or insert images from URL. The salts used are highly toxic - Disposal of salts are controlled by stringent environmental laws in western countries and has increased the costs involved in using salt baths. "Gun control: The theory that a woman found dead in an alley, raped and strangled with her panty hose, is somehow morally superior to a woman explaining to police how her attacker got that fatal bullet wound." We trust these pins to perform in the harshest conditions.. A barrel that is nitridedis going to be more accurate that a chrome lined barrel because chrome plating takes away some of the sharpness of the rifling. Maybe it would accept more oil if you heated it GENTLY? WMD Guns is no longer offering the Upgrade program for individual parts. 10/10 would recommend. This is by far the most popular and well-known finish to have on a bolt carrier group. Its a surface treatment which isnot the same as a full heat treat. Bob is also the founder of CNCCookbook, the largest CNC-related blog on the Internet. Black nitride is a surface conversion that diffuses into the material, altering the chemical make up for increased hardness, improved strength, and ultimately better durability. It looks dried out and splotchy in spots. The only specifically interesting feature of the ferrocyanide is the N in it. This process is the new industry leader in bore coatings for firearm barrelsachieving a 30% greater lifespan in the bore than chrome! All of the bolt carrier coatings or treatments have their trade offs so it is up to the buyer to make the decision on what they want and need. Black Nitride Slide Coating. Please enter your username or email address. Paste as plain text instead, They can and do serialized items, but will only accept from an FFL. Please remove the irons and all internals. In gas nitriding the donor is a nitrogen-rich gas, usually ammonia (NH3), which is why it is sometimes known as ammonia nitriding. Black Nitride is becoming more common and slowly replacing the parkerizing of steel parts. Outdoor Hub, LLC (d/b/a Carbon Media Group), 30800 Telegraph Rd, Suite 1921, Bingham Farms, MI 48025 USA. Just because it's not a through hardening (the term you were looking for) doesn't make it any less of a heat treat. Broad range of thicknesses. Usually used for release properties in the mold and die industry. Front spacer: Dicropan T-4. The cost is pretty reasonable. Sophisticated black, non-reflective titanium-nitride coating adds corrosion resistance, toughens the blade and enhances non-stick properties. By the way, I asked in the Tailstock thread (where John first suggested Nitriding the tailstock ram) whether you need special steel to nitride. Availability: Within 1 day. Plasma nitriding, also known as ion nitriding, plasma ion nitriding or glow-discharge nitriding, is an industrial surface hardening treatment for metallic materials. Precision honed lubricious surface that does not require grease. The steel turns blue quickly, after which you rinse it in cold water to remove and neutralize the chemicals. Plasma nitriding can thus be performed in a broad temperature range, from 260C to more than 600C. Bluing and Black Oxides are essentially the same thing. As such, we are unable to guarantee specific turnaround or lead times for this service, although in our experience the vendor we use has been very good with their quoted times. You do as you wish, I really don't care. For more information, contact us via email. Broad range of substrates. This process isn't really a gun coating, since it doesnt change a parts finished dimensions, so it is well-suited for both precision internal components and bores. Pasted as rich text. Anyway the point is that the color that nitriding turns steel is irrelevant and doesn't affect the material properties even if it's been rubbed off despite what the internet experts would have you believe. Sent in my p365 to have an optic cut and installed on it. Superb Job!!!!!!!!! The Ionbond Black DLC will not chip, crack or peel, providing you with years of protection against wear while maintaining its integrity. To subscribe to the magazine,visit theNRA membership page hereand select Shooting Illustrated as your member magazine. If you want to try Dicropan, its just $18.95 on Amazon. The person sending the gun doesn't have to be an expert if the company doing the finishing is. Such highly active gas with ionized molecules is called plasma, naming the technique. Ideally, steels for nitriding should be in the hardened and tempered condition, requiring nitriding to take place at a lower temperature than the last tempering temperature. Nitriding is a heat treating process that diffuses nitrogen into the surface of a metal to create a case-hardened surface. Looks like it came from the factory with a smoother finish. Plasma nitriding is often coupled with physical vapor deposition (PVD) process and labeled Duplex Treatment, with enhanced benefits. If holster wear/durability is a concern then we highly recommend going with our Black Nitride as Cerakote is a wearable item. For fun I compared the finish from two Brownells cold bluing products: Dicropan T-4 and Oxpho-Blue Creme Cold Bluing Test. After WWII the process was reintroduced from Europe. Each has its pros and cons, but all provide better protection from the elements than the coats of old. Unbelievable Finish!!! Received my P320 slide and the finish exceeded my expectations! I've had several of my guns Pvd coated by Richter precision. Clear editor. St. Peters, MO 63376, [VIDEO] Top 10 Best Super Bowl 50 Commercials (2016 Funniest Ads), How to Hit the G-Spot with the New Bang Switch. Thanks for the responses. Black Nitride Black Nitride and dry to touch oil (BN) Cadmium Platings Cadmium Plus Clear Chromate (CI) Cadmium Plus Metric Blue Chromate (CB) Cadmium Plus Olive Drab Chromate (CO) Cadmium Plus Yellow Chromate (C) Cadmium Without Finish Coat (D) Dry Film Lubricants Carbowax (CW) Electro-Film (EF) Molybdenum Disulfide Dry Film Lubricant (MD) The Fora platform includes forum software by XenForo. The only other option I was aware of at the time was bright stainless steel. Phosphating is more difficult to get completely clean like nickel boron or black nitridedue to the caked on powder and carbon fowling adhering to the finish. NitrideNames like Melonite, Ni-Corr, Black nitride or salt bath nitride are all variations of a surface treatment formally known as Liquid Salt Bath Ferritic Nitrocarburizing Non-Cyanide Bath (FNC) or simply nitriding. Thus the process is user-friendly, saves energy since it works fastest, and causes little or no distortion. Outstanding job! As for cosmetics, the wear properties of the surface may be a concern for some people, even if the underlying metal isn't affected. Precise control of chemical potential of nitrogen in the nitriding atmosphere by controlling gas flow rate of nitrogen and oxygen. There are hot plasmas typified by plasma jets used for metal cutting, welding, cladding or spraying. The Midnight G10 camouflage handle is triple-riveted and built to withstand even the most vigorous slicing, dicing, and cutting. Unfortunately, the constant slamming of metal on metal can cause chrome to wear or flake off of hard-use parts like bolt-locking lugs, which can affect accuracy, reliability and even safety. Only one process possible with a particular salt type - since the nitrogen potential is set by the salt, only one type of process is possible, This page was last edited on 18 January 2023, at 12:54. The high temperature corresponds to carburizing temperatures. Solution must be vigorously agitated during plating to ensure the BN particles remain suspended in the solution. Fire Resistant Coating UAE; Fire Retardant Paint UAE; Heat Resistant Paint UAE; Contact; Search; naugatuck high school schedule Menu Menu; tony terry with you release date black nitride coating at home . The art of bluing steel has been used with firearms since the very beginning, but bluing is much older than firearms. For a better experience, please enable JavaScript in your browser before proceeding. Our engineered Electroless nickel plating processes can be tailored to provide various levels of hardness, wear, abrasion and corrosion resistance, and lubricity. It's a case hardening thermal treatment, if you really want to get technical. SOLUTION: Switch to black nitride custom core pins from Progressive Components. It has all the pros like ease of cleaning and wear-resistance without the downside of potential flaking. Black Nitride Ejector Sleeves have a precision honed lubricious surface that does not require grease in cleanroom applications, and a high hardness (66-70 HRC) that is suited for harsh conditions such as with die casting. At a former job, we had lots of shafts nitrided. Click HERE to see Progressive Components in action. NiB-X nickel boron parts are known for high hardness, good adhesion, excellent lubricity, low coefficient of friction and uniform coverage. And since coatings mirror the surface profile of the substrate, little or no post-plate grinding or burnishing is required. Indeed, argon and H2 can be used before the nitriding process during the heating of the parts to clean the surfaces to be nitrided. Nickel-boron (NiB) is an electroless gun coating, instead applied chemically. The black nitride treatmentis very durable and highly resistant to wear and it will not flake because it is not a coating. Setting A New Standard In Metal Processing Share Watch on This also helps the thermal stability of the plasma plant, since the heat added by the plasma is already present during the warm up and hence once the process temperature is reached the actual nitriding begins with minor heating changes. First of all, let's get one thing straight; nitriding is NOT a coating. Learn more about Bob from his Author Bio page. Manufactured to withstand pressure of hard-to-align dies with diagonal thermal expansion. Consistent color across the slide with no imperfections anywhere. For instance, mechanical properties of austenitic stainless steel like resistance to wear can be significantly augmented and the surface hardness of tool steels can be doubled.[3][4]. Most of the [few] commercially available modern sporting rifles and surplus longarms of the day had some form of Parkerized finish. The Salt Bath Nitride process is a Thermo Chemical treatment that improves wear resistance and corrosion resistance of ferrous metals with little or no dimensional change. Posted by Darren McCarthy on Sep 13th 2022, Get the latest updates on new products and upcoming sales, Front Serration Models - 19FS/17FS/34FS/43X/45/48, AmeriGlo XL Height Sights - Black - GL-429, AmeriGlo Defoor Sights G42/G43 (Black Front / Black Rear) - GT-532.